Don't be a good guy in a place with a soft-on-crime DA or one with commitment to social justice and de-incarceration for some groups (Marines aren't one of those groups). Society is better off with the Marine rather than the lunatic subway rider with 40 priors including some for violence. Those lunatics make life miserable for a lot of people and much less enjoyable. But restorative justice or something or other so we need to teach that Marine a lesson. Best to be rich enough to not have to live around crazy violent people who threaten others or be on a subway with them. But, most Americans don't have that option. It's a new world in America now. You might think you're a good guy but a DA might see you as a little Himmler. That said, someone died so I'm not surprised. That Marine didn't need to choke him that long. Again, be smarter now. The old rules no longer apply.